Using molecular and morphological evidence, the axiidean family Strahlaxiidae Poore, 1994 is rediagnosed and confined to just Strahlaxius Sakai & de Saint Laurent, 1989. It includes three species S. plectrorhynchus (Strahl, 1862), S. waroona (Poore & Griffin, 1979) and the new species, Strahlaxius australiensis sp. nov. The distributions of the three species are discussed. Neaxius Borradaile, 1903 and Neaxiopsis Sakai & de Saint Laurent, 1989 are removed from Strahlaxiidae to Axiidae
